Thanks for your message and information about your branch. It was enough for me to find your parents in my database and then see the links to earlier generations of the Thauberger family.
Your paternal grandfather, Joseph Thauberger, was the son of Christian Thauberger (1866-1944) and Katharina Gottselig (1865-1931). Christian's parents were Josef Thauberger and Katharina Fahlmann (b. ca 1835), who was a sister of my great-great-grandfather Andreas Fahlmann (son John A. of Holdfast, SK, and granddaughter Maria 'Mary' Fahlman(n) wife of John F. Zurowski, of Southey, SK, my dad's parents).
The parents of Josef Thauberger are unknown but the father was born between 1803 and 1822 to the original Thauberger who left Western Europe for Russia about 1805. His name was Johann Thauberger (b. ca 1772/3) and his wife was Barbara (maiden surname unknown).
If you want to keep in touch and exchange fuller details of the family, please feel free to contact me at leliwite at hotmail dot com.